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The ASC ENGINEERED SOLUTIONS 300040201 is a black cast iron reducing tee designed for threaded pipe assemblies in gas, water, and industrial distribution systems. This fitting connects a 1-1/4 inch run with a 1 inch branch outlet and returns to a 1-1/4 inch outlet, allowing a controlled reduction in branch flow while maintaining full run diameter. Weighing 1.76 pounds, it is built from domestic cast iron with a black coating for corrosion resistance in standard service environments. Plumbers, pipefitters, and mechanical contractors install this fitting in new construction and retrofit applications where a reducing branch connection is required.
This reducing tee is suited for residential and light commercial piping systems that require a branch takeoff at a reduced diameter. It is commonly used in gas distribution piping, fire suppression supply lines, and general plumbing rough-in work where a durable, threaded cast iron fitting is specified. The domestic origin designation meets project requirements that call for domestically manufactured pipe fittings.
Designed as an OEM-style replacement and standard-fit reducing tee for threaded cast iron pipe systems using 1-1/4 inch and 1 inch nominal pipe sizes.
Installation of threaded cast iron fittings is typically performed by licensed plumbers or pipefitters. Shut off the relevant gas or water supply and relieve system pressure before disassembling any existing piping. Apply appropriate thread sealant or tape to all male NPT threads before assembly. Follow applicable codes including the IPC and IFGC for piping system requirements in your jurisdiction.
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